Marine vessel.



PATENTBD,MAR. 13, 1906.

' 0. A." MANKER.

MARINE VESSEL. APPLICATION FILED 00'1. 3,1904.

WMM. v

the followin The side surfaces features by which substantially the.

CAREY Ar MANKERJIOFPEAEL, ILLINOIS.

I nAniNE VESSEL.

Be it known that I, CAREY M-A'N-KER,

'a citizen of the United States, residin in Pearl, in the county of Pike and-State of lli-'.

nois, have invented certain new and useful Improvements in Marine'Vessels, of which is a-full, clear, and exact description, re erence being had to the accom panying drawings, forming part of this speci fication' My invention relates to the exterior form .of vessel-hullsv for naviglating'the water, the

purpose of the form in t e peculiar 'configura: tion thereof being to overcome the resistance ofthe water as the hull moves therethrou h with'a minimum ex enditure'of power. The

formation of convex and concave exterior hull areas and the narrowing of the water-receiving portions of these areas from the forward end or bow of the hull to the rear end or stern.

Figure 1 is a side elevation of my hull. Fig. 2 is a bottom view of the hull. ig. 3 isa transverse vertical section taken on line W. W, Fig.. 1. Fig. 4 is a vertical transverse section taken on line X X, Fi 1. Fig. 5 is a vertical transverse section ta en on line Y Y,

Fig. 1. Fig. 6 is a vertical transverse section taken on line Z Z, Fig. 1. Fi 7 is a vertical longitudinal section taken on ine V Y, Fig. 2.v A designates the side surfaces of my hull, the contours of which are in the'main convex inhorizontallines, the sha e being in cross: section, preferably rvertica adjacent to the bow,- (see Fig.3) and from thence to stern in part .vertica and in: part inwardlyv curved.

A extend inwardl ually from points adjacent to the bowof the hull with respect to thehulls axis, whereby the side surfaces are brought closer together ducing a narrowing water-receiving hu 1, the greatest width of whichis forward and the east width of'which is rearward.

B designates the bottom surface-of the hull, the contour of which is concaved in cross-section and which narrows-from its forward end to its rear end in l'ke manner to the narrowing of the side surfaces A. At the forward end or bow of the hull is an upwardly curved or inclined surface B, that is convexlycurved transversely and is located immediately in front'of the forward end of the concavity at Specification of Letters Patent. "A uoiaonmq 0 am 9. 190 4. Beria1No.226.9 62.

rendered of approximately U forward point to the culiar meritby t is result is attained are y grad-' from the forward end of the hull to the rear end thereof, thereb pro- Patented March 13, 1.906. a

bottom surfaces B merge into more orless rounded ridge-surfaces 0, whereby the hull is shape in bottom elevation.

designates aballast-keel gitudmal y of the bottom-surface B at the center thereof.

E is a rudder, and F the propellers.

The surfaces-A, due to thei being inclined mwardly toward the axis of the hull from a reason of their terminating at a pomt at whichthe bow of. the hull first receives impact of the water in its forward- .travel at which point the surfaces Amerge into the surface construction of backwardly-facing sides, or,-

ing portion of the hull from a point rearward from the point at which the waterfirst im pinges against the hull in the for-ward movement of the vessel, permits of the inginwardly in horizontal plane throughout the whole length of the watereim act surface of the hull, t us securing the a vantage of side pressure of the hull sides. through a greater length of the hull than in vessels of types heretofore in use. The advantage of further increased by having the horizontal longitudinal lines hyperboloidal or the curves inwar the accelerated flow of the water inwardly as the vessel moves forwardly.

In the practical use of my vessel as the vessel moves forwardly the water in which it floats is displaced downwardly by the concave bottom area B, while the convex sides permit of the water at the sides of the hull owing inwardly to prevent suction from the araboloidal curves, wherein shape or V .60 extending lonthe construction may be i the hull-bottom. The. side surfaces and' rear. of'the hull, have pei ,iIt will be seen that this in other words, the narrowmg'water-receivsuch inflowingwater against of the surfaces A partake of 1y and'backwardly express water. or to prevent 'suction'of air at the'stern I of the hull. It is especially to be noted that -a displacement of water ina downward direction, as in myform ofv hull, tends to reduce the draft of the vessel while in motion, thus eliminating entirely a portion of the resistance of the water, hile at the same timethe side ressure against the rearwardly and inward y extendin side areas of the hull tends to assist in the orward travel of the vessel. my construction the water is displaced throughout the rincipal length .of-the hull,

thus providing or the securing of greater Ioo 1 speed without displacingthe water faster rearwardly and ength, and

an mother forms of vessels "ata slower speed, whereby v speed may be attained andmaintamed with a saving of power for the higher speed. In ordina t es of vessel-hulls laced m. t e first third or half of the hulls i thereforethe advantage that I secure is entirely absent therefrom. I claim as m invention e 1. A vesselull having its sides inclined with the hull to, the stern.

2. A vessel-hull having the horizontal ,wa-' fr ter-line surfaces at wardly and inwardly ingement of the water thereagainst at the .Eow as the vessel moves in a forward direction, to the stern of the hull. 3. A vessel hull narrowed from the point of firs its sides inclined rearlongitudinally t impmgementof water J against its sides to its stern, and havinga concaved bottom surface, said concaved ottom it will be seen that a higher the water is di'sinwardly in horizontal sec-' tion from the point of first contact of water'.

from points of first imd1! fauna? surface being narrower at its rear end than at its forward end. v V

4. A vessel-hull havi its sides inclined rearwardly and inwardly rom points of first impingement of water thereagamst and being of convex contour in vertical section and having a concaved bottom surface said concaved ottom surface being narrower at its rear end than at its forward end;

v 5. A vessel-hull having its sides tapered inwardly and rearwardly from its bow to its stern and having a concaved bottom surface; said sides and bottom surface merging into ridges extending longitudinally of the hull om the points of first impingement of water thereagainst as the vessel moves in a forward ection.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses. I r

I y CAREY A. MANKER.

Witnesses: 

